What happens when you convert Opus to FLAC
| Compression | Lossy → Lossless |
|---|---|
| Size per minute | Opus ≈ 1.0 MB → FLAC ≈ 6.4 MB |
| Quality | No further loss, but the FLAC cannot restore what Opus compression removed |
| Tags | Title, artist and album tags are copied when the target format supports them |
| Opens in | Android, Windows 10/11, macOS and audiophile players; older stereos do not |
Sizes are typical values; your files will vary with content and settings.
Opus Opus Interactive Audio
Opus is a modern open codec that outperforms MP3 and AAC at low bitrates. WhatsApp voice notes, Discord and WebRTC calls all use Opus.
Opus converterFLAC Free Lossless Audio Codec
FLAC compresses audio losslessly to around 50 to 60 percent of WAV size. Decoding gives back the exact original samples, so it is the format of choice for archiving music.
FLAC converterHow to use the Opus to FLAC Converter
- 1
Choose a Opus file or drop it onto the page.
- 2
Review the audio options. The defaults suit most files.
- 3
Click Convert and download your FLAC when processing finishes.
Why convert Opus to FLAC?
Opus files are most often WhatsApp and Telegram voice notes, and audio saved from web streams. Older players and many editors cannot open .opus files. Choose FLAC to keep the audio lossless at roughly half the size of WAV.
Frequently asked questions
Will the FLAC lose quality?
FLAC is lossless, so the conversion keeps every pixel or sample that is in your Opus file. It cannot bring back detail that Opus compression already removed, and the FLAC file will usually be larger.
Will the FLAC be smaller than the Opus?
No, usually larger: a minute of audio takes about 1.0 MB as Opus and about 6.4 MB as FLAC. FLAC is lossless, so its size depends on the audio rather than a bitrate setting.
Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.